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	```			```

	Note: gdb attach step may require `sudo`. To get rid of this, you can run:			Note: gdb attach step may require `sudo`. To get rid of this, you can run:

	```bash			```bash
	echo 0 \| sudo tee /proc/sys/kernel/yama/ptrace_scope			echo 0 \| sudo tee /proc/sys/kernel/yama/ptrace_scope
	```			```

				Often while debugging rpc calls from functional tests, the test might reach timeout before
				process can return a response. Use `--timeout-factor 0` to disable all rpc timeouts for that particular
				functional test. Ex: `test/functional/test_runner.py wallet_hd --timeout-factor 0`.

	### Benchmarking and profiling with perf			### Benchmarking and profiling with perf

	An easy way to profile node performance during functional tests is provided			An easy way to profile node performance during functional tests is provided
	for Linux platforms using `perf`.			for Linux platforms using `perf`.

	Perf will sample the running node and will generate profile data in the node's			Perf will sample the running node and will generate profile data in the node's
	datadir. The profile data can then be presented using `perf report` or a graphical			datadir. The profile data can then be presented using `perf report` or a graphical
	tool like [hotspot](https://github.com/KDAB/hotspot).			tool like [hotspot](https://github.com/KDAB/hotspot).
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